Mark Zuckerberg’s vow to make Facebook (ticker: FB) more “privacy-focused” with renewed emphasis on encryption and security is eliciting groans and eye rolls throughout the cybersecurity community.

“[It’s] another effort to buy time and hold regulators at the gate,” Shane Green, U.S. chief executive of data privacy app digi.me, told Barron’s in an email. “Zuckerberg does not address the real problem–Facebook’s business model. When revenues are based on owning and exploiting user data, it is disingenuous to suggest that these…